<template>
  <!-- 放置弹层组件 -->
  <!-- @open="getEmployeesSimle" -->
  <el-dialog
    :title="showTitle"
    :visible="showDialog"
    :close-on-click-modal="false"
    @close="closeDialogFn"
    @open="getEmployeesSimle"
  >
    <!-- 表单组件  el-form   label-width设置label的宽度   -->
    <!-- 匿名插槽 -->
    <!--
      1.el-form :model
      2.el-form :rules
      3.el-form-item prop
      4.el-input v-model
     -->
    <el-form ref="addForm" label-width="120px" :model="form" :rules="rules">
      <el-form-item label="部门名称" prop="name">
        <el-input
          v-model="form.name"
          style="width: 80%"
          placeholder="1-10个字符"
        />
      </el-form-item>
      <el-form-item label="部门编码" prop="code">
        <el-input
          v-model="form.code"
          style="width: 80%"
          placeholder="1-10个字符"
        />
      </el-form-item>
      <el-form-item label="部门负责人" prop="manager">
        <el-select
          v-model="form.manager"
          style="width: 80%"
          placeholder="请选择"
        >
          <el-option
            v-for="item in managerList"
            :key="item.id"
            :label="item.username"
            :value="item.username"
          />
        </el-select>
      </el-form-item>
      <el-form-item label="部门介绍" prop="introduce">
        <el-input
          v-model="form.introduce"
          style="width: 80%"
          placeholder="1-300个字符"
          type="textarea"
          :rows="3"
        />
      </el-form-item>
    </el-form>
    <!-- el-dialog有专门放置底部操作栏的 插槽  具名插槽 -->
    <div slot="footer">
      <el-button
        type="primary"
        size="small"
        @click="confirmAddDept"
      >确定</el-button>
      <el-button size="small" @click="closeDialogFn">取消</el-button>
    </div>
  </el-dialog>
</template>

<script>
import { getEmployeesSimleApi } from '@/api/employees'
import {
  addDepartmentApi,
  getDepartmentDetailApi,
  editDepartmentApi
} from '@/api/departments'
export default {
  // 需要传入一个props变量来控制 显示或者隐藏
  props: {
    showDialog: {
      type: Boolean,
      default: false
    },
    nodeData: {
      type: Object,
      default: () => {}
    },
    departList: {
      type: Array,
      default: () => []
    }
  },
  data() {
    return {
      form: {
        code: '',
        introduce: '',
        manager: '',
        name: '',
        pid: ''
      },
      rules: {
        name: [
          { required: true, message: '部门名称不可为空', trigger: 'blur' },
          { min: 1, max: 10, message: '部门名称长度为1-10', trigger: 'blur' },
          { validator: this.validateDeptName, trigger: 'blur' }
        ],
        code: [
          { required: true, message: '部门编码不可为空', trigger: 'blur' },
          { min: 1, max: 10, message: '部门编码长度为1-10', trigger: 'blur' },
          { validator: this.validateDeptCode, trigger: 'blur' }
        ],
        manager: [
          { required: true, message: '部门负责人不可为空', trigger: 'change' }
        ],
        introduce: [
          { required: true, message: '部门介绍不可为空', trigger: 'blur' },
          { min: 1, max: 300, message: '部门介绍长度为1-300', trigger: 'blur' }
        ]
      },
      managerList: []
    }
  },
  computed: {
    showTitle() {
      return this.form.id ? '编辑部门' : '新增部门'
    }
  },
  methods: {
    /**
     * 回显部门详情
     */
    async getDepartmentDetail() {
      // this.nodeData.id 存储的是点击那一行的id
      const { data } = await getDepartmentDetailApi(this.nodeData.id)
      this.form = data
    },
    async getEmployeesSimle() {
      const { data } = await getEmployeesSimleApi()
      this.managerList = data
    },
    closeDialogFn() {
      // this.$emit('closeDialog')
      // this.showDialog = false
      // 子组件必须通过固定语法来修改父组件放权过来的值
      this.$emit('update:showDialog', false)
      // 清空数据
      this.$refs.addForm.resetFields()
      this.form = {
        code: '',
        introduce: '',
        manager: '',
        name: '',
        pid: ''
      }
    },
    /**
     * 校验部门名称
     */
    validateDeptName(rule, value, callback) {
      // 要拿输入的内容和点击部门的子部门进行对比
      // console.log(value)
      // console.log(this.nodeData.children)
      // if (this.form.id) {
      //   if (this.nodeData.name === value) {
      //     callback()
      //     return
      //   } else {
      //     const children = this.departList.filter(item => item.pid === this.nodeData.pid)
      //     const flag = children.some(item => item.name === value)
      //     flag ? callback(new Error('部门名称不能重复')) : callback()
      //   }
      // } else {
      //   const children = this.nodeData.children || []
      //   const flag = children.some((item) => item.name === value)
      //   flag ? callback(new Error('部门名称不能重复')) : callback()
      // }
      let children = []
      if (this.form.id) {
        if (this.nodeData.name === value) {
          callback()
          return
        } else {
          children = this.departList.filter(item => item.pid === this.nodeData.pid)
        }
      } else {
        children = this.nodeData.children || []
      }
      const flag = children.some(item => item.name === value)
      flag ? callback(new Error('部门名称不能重复')) : callback()
    },
    /**
     * 校验部门编码
     */
    validateDeptCode(rule, value, callback) {
      // console.log(value)
      // console.log(this.departList)
      // if (this.form.id) {
      //   if (value === this.nodeData.code) {
      //     callback()
      //     return
      //   } else {
      //     const flag = this.departList.some((item) => item.code === value)
      //     flag ? callback(new Error('部门编码不能重复')) : callback()
      //   }
      // } else {
      //   const flag = this.departList.some((item) => item.code === value)
      //   flag ? callback(new Error('部门编码不能重复')) : callback()
      // }
      if (this.form.id && value === this.nodeData.code) {
        callback()
        return
      } else {
        const flag = this.departList.some((item) => item.code === value)
        flag ? callback(new Error('部门编码不能重复')) : callback()
      }
    },
    /**
     * 添加
     */
    confirmAddDept() {
      this.$refs.addForm.validate(async(valid) => {
        if (!valid) return
        if (this.form.id) {
          // 编辑
          await editDepartmentApi(this.form)
          this.$message.success('恭喜！修改成功')
        } else {
          // 添加
          this.form.pid = this.nodeData.id
          await addDepartmentApi(this.form)
          this.$message.success('恭喜！添加成功')
        }
        this.closeDialogFn()
        // this.$emit('reloadList')
        // this.$parent 上层组件 在父组件中调用子组件 一定把子组件放到最外层
        this.$parent.getDepartmentList()
      })
    }
  }
}
</script>

